Quote:
Originally Posted by AV8R4AA
My 2004 4.4i engine has a semi rythmic idle.
It is always smooth. Every minute or so, I get a
stumble. It's not enough to see on the tachometer, yet you
can hear it. It has done this since I have owned it.
I have no codes, very good gas mileage, great power.
I only get the stumble at idle, don't see or feel it at cruise RPM.
Any ideas where to start looking?
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Hi , when I changed mine out the rpm were around 500 , to low for the eninge to function correctly , when I would start the x5 the LOW OIL PRESSURE , warning would come on, After I changed it the rpm's are 650 and idles great, And I changed my vanos solenoids and now , the engine is like new ............low end torque is back , she flies like like bird now.and mpg is much better too, tranny is shifting on cue ...............fun to drive now
